Susan’s elevation at the top of a mountain is 1530 meters.After four hours of climbing down her elevation is 680 meters. What is Susan’s average change in elevation in meters per hour?

Answer:2x3+5x2-4x+6

Step-by-step explanation:

2x3+5x2-4x+6 is your answer

Answer:

5

Step-by-step explanation:

You will need the distance formula.

[tex]d = \sqrt{(x_2 - x_1)^2 + (y_2-y_1)^2}[/tex]

Now you can plug in your 2 points.

A([tex]x_{1}[/tex], [tex]y_{1}[/tex])

B([tex]x_{2}[/tex], [tex]y_{2}[/tex])

[tex]d = \sqrt{(-1 - (-4))^2 + (4-8)^2}[/tex]= 5

Um...wut is shoe commercial?

Anyway, she wants to split them equally among 4 neighbors and herself.

So do 5/5. It 1.

So everybody get 1 each.

---

hope it helps

Answer:

1. 2,100 sec

2. 2 min and 43 sec

3. 1,470 min

4. 3 weeks, 1 day, 12 hours

5. 60 months

Answer:

It will take 7 weeks for Michael to reach his goal.

Step-by-step explanation:

600=50(1.5)^x

12=1.5^x

x≈6.13

Answer:

Sssssnake ssssssnake sssssnake...........................................................................................................................................................

Step-by-step explanation:

Answer:

A and E :)

Step-by-step explanation:

4 MPH was her to speed

Answer:

I think number B

Step-by-step explanation:

I plugged it in the calculator. And then they both were zero.

Answer:

=55

Step-by-step explanation:

5+36/2*3-4

=5+54-4

=55

i hope this helps :)

Answer:

If you want a simple average, you can add all the speeds you see and divide them by the number of how many they are.  

So firstly you have to calculate the speed of the first point, which is:  

20 miles/0.5 hour

That means: 40 miles/hour

That would be your first "speed"

Then you calculate all of them :speed1+speed2+speed3 = something.  

As an example: 20miles/hr + 40miles/hr+0miles/hr = 60miles/hr

Then, you divide it by how many "speeds" they are: 60miles/hr divided by 3 if I continue my previous example.

It is my first answer, and I hope I could help you a bit!

Sorry for the awkward English, as it is not my mother tongue.

Step-by-step explanation:

The answer is 37.68

We need to find the area of the sector of the circle.

There is a missing part in the upper left part of the circle.

The upper left part central angle measure 90 degree becuase it has a perpendicular sign.

Using central angle and arc theorem, the central angle equal the arc measure so that arc measure is 90 degrees.

There is 360 degrees in a circle so using arc addition,

the rest of the arc measure 270 degrees.

We can use this formula to find the area of the sector

[tex] \frac{x}{360} \times \pi \times {r}^{2} [/tex]

where x is the measure of the central angle and r is the radius.

Plug 270 in for x. The radius is 4.

[tex] \frac{270}{360 } \times \pi \times {4}^{2} [/tex]

[tex] \frac{3}{4} \times \pi \times 16[/tex]

[tex]12\pi[/tex]

which is about

37.68

Answer: well

Step-by-step explanation:

Answer:

is this a 3 part question?

Step-by-step explanation:

it seems a lol weird

Answer:

x = 2

Step-by-step explanation:

f(x) = x + 8

f(x) = 10

10 = x + 8

minus 8 from the both sides

10 - 8 = x

2 = x

x = 2

Hope this is right correct me if im wrong!!!

Exponential function is a function between the dependent variable and independent variable in which the constant change in the independent variable gives the same proportional change in the dependent variable.

[tex]y=\dfrac{10}{3} \times 3^x[/tex]

Given information-

The exponential function [tex]f[/tex] takes the value 10 when,

[tex]x=1[/tex]

The exponential function [tex]f[/tex] takes the value 2 when,

[tex]x=2[/tex]

Exponential function is a function between the dependent variable and independent variable in which the constant change in the independent variable gives the same proportional change in the dependent variable.

The general form of the exponential function,

[tex]y=ab^x[/tex]

Here [tex]a[/tex] is the y intercept of the function and exponent of independent variable [tex]x[/tex].

The exponential function [tex]f[/tex] takes the value 10 when the value of x is 1.

thus,

[tex]10=ab^1\\10=ab\\a=\dfrac{10}{b}[/tex]

Let the above equation as equation number 1.

The exponential function [tex]f[/tex] takes the value 2 when the value of x is 2,

[tex]30=ab^2\\30=ab^2\\a=\dfrac{30}{b^2}[/tex]

Compare the values of a,

[tex]\frac{10}{b} =\frac{30}{b^2}\\ b=\dfrac{30}{10}\\ b=3[/tex]

Put the value of b in equation 1,

[tex]a=\dfrac{10}{3}[/tex]

Thus the y intercept of the function is 10/3.

Put the values to find the equation,

[tex]y=\dfrac{10}{3} \times 3^x[/tex]

Hence,

[tex]y=\dfrac{10}{3} \times 3^x[/tex]

Learn more about the exponential function here;

https://brainly.com/question/15352175

Answer:

The value of x is 29.

Step-by-step explanation:

4x-15+2x+21=180

6x+6=180

6x=174

x=29

Answer:

16

Step-by-step explanation:

If a negative exponent is in the denominator, move the expression to the numerator and make the exponent positive.

4²

Evaluate the power

16

Therefore the solution is 16

Answer:

x = [tex]\frac{16}{3}[/tex]

Step-by-step explanation:

Since the triangles are similar then the corresponding sides are congruent.

EF and BC are corresponding sides , then

8x - 3 = 5x + 13 ( subtract 5x from both sides )

3x - 3 = 13 ( add 3 to both sides )

3x = 16 ( divide both sides by 3 )

x = [tex]\frac{16}{3}[/tex]

Answer:

Its 59.5cm

Step-by-step explanation:

i took the test my dudes i got you

Answer:

59.5cm^2

Step-by-step explanation:

I took the test

Answer:

x = 1

Step-by-step explanation:

The proportion in this question is (3z) : (3z)+(z+22) = (2x+1) : (8x-2), since there are two triangles that are similar.

The question said that 3z = z+22

--> 2z = 22

--> z = 11

So our new proportion will be:

--> (3z) : (3z)+(z+22) = (2x+1) : (8x-2)

--> (33):(66) = (2x+1):(8x-2)

--> (66)(2x+1) = (33)(8x-2)

--> 132x + 66 = 264x - 66

--> 132x - 132 = 0

--> 132x = 132

--> x = 1

Answer:

Multiply 123 times 2 (246) and then divide that by 56 and add 7 to get your final answer.

Answer:

8z

Step-by-step explanation:

have a wonderful day....

Answer:

[tex]Volume = 643.0\ in^3[/tex]

Step-by-step explanation:

Given

Dimension: 4.75in, 4.75in and 28.5in

[The complete dimension is missing from the question]

Required

Calculate the volume

The volume is calculated as thus:

[tex]Volume = 4.75in * 4.75in * 28.5in[/tex]

[tex]Volume = 643.03125in^3[/tex]

[tex]Volume = 643.0\ in^3[/tex] --- approximated

Answer:

no

Step-by-step explanation:

Answer:

Step-by-step explanation:

C

The best option from the choices provided is D.

-7A + 3B,

= [tex]\left[\begin{array}{ccc}-41&-67&69\\29&46&-19\\-44&32&8\end{array}\right][/tex]

A collection of numbers lined up in rows and columns to form a rectangular array is called a matrix. The elements, or entries, of the matrix are the numbers.

Given:

We have matrices,

[tex]A = \left[\begin{array}{ccc}8&10&-6\\-8&10&-7\\2&-2&2\end{array}\right] \\ and \\B = \left[\begin{array}{ccc}5&1&9\\-9&-8&10\\-10&6&-2\end{array}\right][/tex]

Then,

-7A + 3B,

= [tex]\left[\begin{array}{ccc}-41&-67&69\\29&46&-19\\-44&32&8\end{array}\right][/tex]

Therefore, the evaluated matrix is given above.

To learn more about the matrix;

https://brainly.com/question/29132693

#SPJ2

Answer:

width = 5cm

Step-by-step explanation:

hope it helps

Answer:

Step-by-step explanation:

Answer:

32y^3/9z

Step-by-step explanation:

Answer:

32y/ 9y squared z

Step-by-step explanation:

Hope this helps. I recommend the website wolfram alpha.